Move Pickle to base namespace.

chrome/browser/ui/views/extensions/browser_action_drag_data.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_EXTENSIONS_BROWSER_ACTION_DRAG_DATA_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_BROWSER_ACTION_DRAG_DATA_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 
 #if defined(TOOLKIT_VIEWS)
 #include "ui/base/dragdrop/os_exchange_data.h"
 #endif
 
+class Profile;
+
+namespace base {
 class Pickle;
-class Profile;
+}
 
 class BrowserActionDragData {
  public:
   BrowserActionDragData();
   BrowserActionDragData(const std::string& id, int index);
 
   // These mirror the views::View and views::MenuDelegate methods for dropping,
   // and return the appropriate results for being able to drop an extension's
   // BrowserAction view.
   static bool GetDropFormats(
@@ skipping 12 matching lines @@
   void Write(Profile* profile, ui::OSExchangeData* data) const;
 
   // Restores this data from the clipboard, returning true on success.
   bool Read(const ui::OSExchangeData& data);
 
   // Returns the Custom Format this class supports (for Browser Actions).
   static const ui::OSExchangeData::CustomFormat& GetBrowserActionCustomFormat();
 #endif
 
  private:
-  void WriteToPickle(Profile* profile, Pickle* pickle) const;
-  bool ReadFromPickle(Pickle* pickle);
+  void WriteToPickle(Profile* profile, base::Pickle* pickle) const;
+  bool ReadFromPickle(base::Pickle* pickle);
 
   // The profile we originated from.
   void* profile_;
 
   // The id of the view being dragged.
   std::string id_;
 
   // The index of the view being dragged.
   size_t index_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserActionDragData);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_BROWSER_ACTION_DRAG_DATA_H_